{"id":48601,"date":"2019-11-11T07:05:30","date_gmt":"2019-11-11T06:05:30","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/o-que-e-pressao-no-reator-de-agua-pressurizada-definicao\/"},"modified":"2020-01-29T16:48:15","modified_gmt":"2020-01-29T15:48:15","slug":"o-que-e-pressao-no-reator-de-agua-pressurizada-definicao","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/pt-br\/o-que-e-pressao-no-reator-de-agua-pressurizada-definicao\/","title":{"rendered":"O que \u00e9 press\u00e3o no reator de \u00e1gua pressurizada – Defini\u00e7\u00e3o"},"content":{"rendered":"
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A press\u00e3o no reator de \u00e1gua pressurizada \u00e9 mantida por um pressurizador, um vaso separado que \u00e9 conectado ao circuito prim\u00e1rio e parcialmente preenchido com \u00e1gua nos par\u00e2metros de satura\u00e7\u00e3o.\u00a0Engenharia T\u00e9rmica<\/div>\n<\/div>\n
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Press\u00e3o no reator de \u00e1gua pressurizada<\/h2>\n
\"pressurizador\"<\/a>
Um pressurizador \u00e9 um componente essencial dos PWRs.<\/figcaption><\/figure>\n

Os reatores de \u00e1gua pressurizada<\/strong>\u00a0\u00a0usam um\u00a0vaso de press\u00e3o do reator<\/a>\u00a0(RPV) para conter o combust\u00edvel nuclear, o\u00a0moderador<\/a>\u00a0,\u00a0as hastes de controle<\/a>\u00a0e o l\u00edquido de arrefecimento.\u00a0Eles s\u00e3o resfriados e moderados por \u00e1gua l\u00edquida de alta press\u00e3o (por exemplo, 16MPa).\u00a0A essa press\u00e3o, a \u00e1gua ferve a aproximadamente 350 \u00b0 C (662 \u00b0 F).\u00a0Essa alta press\u00e3o \u00e9 mantida pelo\u00a0pressurizador<\/a>\u00a0.\u00a0A temperatura de entrada da \u00e1gua \u00e9 de cerca de 290 \u00b0 C (554 \u00b0 F).\u00a0A \u00e1gua (refrigerante) \u00e9 aquecida no n\u00facleo do reator a aproximadamente 325 \u00b0 C (617 \u00b0 F) \u00e0 medida que a \u00e1gua flui atrav\u00e9s do n\u00facleo.\u00a0Como pode ser visto, o reator possui aproximadamente 25 \u00b0 C de l\u00edquido refrigerante sub-resfriado (dist\u00e2ncia da\u00a0satura\u00e7\u00e3o<\/a>\u00a0).<\/p>\n

Um\u00a0pressurizador<\/strong>\u00a0\u00e9 um componente de um\u00a0reator de \u00e1gua pressurizada<\/a>\u00a0.\u00a0A press\u00e3o no circuito prim\u00e1rio<\/strong>\u00a0das PWRs \u00e9 mantida por um\u00a0pressurizador<\/strong>\u00a0, um vaso separado que \u00e9 conectado ao circuito prim\u00e1rio (perna quente) e parcialmente preenchido com \u00e1gua que \u00e9 aquecida at\u00e9 a\u00a0temperatura de satura\u00e7\u00e3o<\/strong>\u00a0(ponto de ebuli\u00e7\u00e3o) para a press\u00e3o desejada por\u00a0energia el\u00e9trica<\/strong>\u00a0submersa.\u00a0aquecedores<\/strong>\u00a0.<\/p>\n

Por outro lado, existem\u00a0linhas de pulveriza\u00e7\u00e3o<\/strong>\u00a0para\u00a0diminuir a press\u00e3o<\/strong>\u00a0dentro do\u00a0pressurizador<\/strong>\u00a0, o que, por sua vez, causa diminui\u00e7\u00e3o na press\u00e3o no sistema de refrigera\u00e7\u00e3o do reator.\u00a0Essas linhas de pulveriza\u00e7\u00e3o pulverizam o l\u00edquido de arrefecimento do reator da perna fria de um loop para o espa\u00e7o de vapor e condensam uma parte do vapor.\u00a0A a\u00e7\u00e3o de resfriamento reduz a press\u00e3o e limita o aumento da press\u00e3o.<\/p>\n<\/div>\n<\/div>\n

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Este artigo \u00e9 baseado na tradu\u00e7\u00e3o autom\u00e1tica do artigo original em ingl\u00eas. Para mais informa\u00e7\u00f5es, consulte o artigo em ingl\u00eas. Voc\u00ea pode nos ajudar. Se voc\u00ea deseja corrigir a tradu\u00e7\u00e3o, envie-a para: translations@nuclear-power.com ou preencha o formul\u00e1rio de tradu\u00e7\u00e3o on-line. Agradecemos sua ajuda, atualizaremos a tradu\u00e7\u00e3o o mais r\u00e1pido poss\u00edvel. Obrigado.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

A press\u00e3o no reator de \u00e1gua pressurizada \u00e9 mantida por um pressurizador, um vaso separado que \u00e9 conectado ao circuito prim\u00e1rio e parcialmente preenchido com \u00e1gua nos par\u00e2metros de satura\u00e7\u00e3o.\u00a0Engenharia T\u00e9rmica Press\u00e3o no reator de \u00e1gua pressurizada Um pressurizador \u00e9 um componente essencial dos PWRs. Os reatores de \u00e1gua pressurizada\u00a0\u00a0usam um\u00a0vaso de press\u00e3o do reator\u00a0(RPV) … Ler mais<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[14],"tags":[],"yoast_head":"\nO que \u00e9 press\u00e3o no reator de \u00e1gua pressurizada - Defini\u00e7\u00e3o<\/title>\n<meta name=\"description\" content=\"A press\u00e3o no reator de \u00e1gua pressurizada \u00e9 mantida por um pressurizador, um vaso separado que \u00e9 conectado ao circuito prim\u00e1rio e parcialmente preenchido com \u00e1gua nos par\u00e2metros de satura\u00e7\u00e3o. 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